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"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "
Ambose Bierce
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| Number | Title | Issue Date |
| 4180776 | Automatic channel scanning attachment for manual CB radio transceiver An automatic channel scanning attachment is described for connecting to a CB radio transceiver having a manual channel selection. The attachment is designed to automatically manipulate the manual channel selector to scan the channel to select an active ch... | 12/25/1979 |
| 4157505 | Plural band scanning radio with direct switch of RF amplifying transistors A signal-seeking radio receiver is disclosed which can be manually programmed to receive a number of different channels in any combination with three bands with a minimum of switching circuitry. The receiver has pre-IF circuitry which includes at least on... | 06/05/1979 |
| 4097811 | Radio with automatic scan tuning In a radio having power tuning apparatus activated by a latching switch in a sweep position and deactivated by the latching switch in a stop position, the radio further having apparatus responsive to a received radio frequency signal for switching the lat... | 06/27/1978 |
| 4074200 | Circuit arrangement for selective frequency analysis of the amplitudes of one or more signals A circuit arrangement for the frequency selective analysis of the amplitudes of one or more signals in which a selective receiver is automatically scanned through a given frequency band and the scanning speed of its frequency settings is controlled as a f... | 02/14/1978 |
| 4031473 | Station selecting device having improved monitor A station selecting system for use in a multi-channel communication system having a plurality of display devices respectively corresponding to the communication channel. Circuitry is provided for placing the system in a monitor mode of operation where all... | 06/21/1977 |
| 3988681 | Automatic tuning system The tuning circuit of a heterodyne oscillator is controlled by a sweep device to sweep the oscillator frequency over a range in which predetermined frequency values are associated with predetermined broadcast receiver channels. The oscillator signal is ap... | 10/26/1976 |
| 3949312 | Frequency scanning means and method Frequency scanning means and method comprising a broadband signal discriminator means for receiving and delivering signals within its frequency band, detecting means receiving signals delivered by the discriminator means and providing output signals relat... | 04/06/1976 |
